package dom.domain;

import java.util.List;

import org.hibernate.LockOptions;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.transaction.annotation.Transactional;

/**
 * A data access object (DAO) providing persistence and search support for
 * Subtype entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see dom.domain.Subtype
 * @author MyEclipse Persistence Tools
 */
@Transactional
public class SubtypeDAO {
	private static final Logger log = LoggerFactory.getLogger(SubtypeDAO.class);
	// property constants
	public static final String NAME = "name";
	public static final String GID = "Gid";
	private SessionFactory sessionFactory;

	public void setSessionFactory(SessionFactory sessionFactory) {
		this.sessionFactory = sessionFactory;
	}

	private Session getCurrentSession() {
		return sessionFactory.getCurrentSession();
	}

	protected void initDao() {
		// do nothing
	}

	public void save(Subtype transientInstance) {
		log.debug("saving Subtype instance");
		try {
			getCurrentSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}
	public List getList(int offset,int pageSize)
	{

		log.debug("finding all User instances");
		try {
			String queryString = "select * from subtype as model order by model.gid desc";
			Query queryObject = getCurrentSession().createSQLQuery(queryString).addEntity(Subtype.class);
			queryObject.setMaxResults(pageSize); // 每页最多显示几条
			queryObject.setFirstResult((offset - 1) * pageSize); // 每页从第几条记录开始
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	
	}
	public void delete(Subtype persistentInstance) {
		log.debug("deleting Subtype instance");
		try {
			getCurrentSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Subtype findById(dom.domain.SubtypeId id) {
		log.debug("getting Subtype instance with id: " + id);
		try {
			Subtype instance = (Subtype) getCurrentSession().get(
					"dom.domain.Subtype", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Subtype instance) {
		log.debug("finding Subtype instance by example");
		try {
			List results = getCurrentSession()
					.createCriteria("dom.domain.Subtype")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}
	public void update(int sid,int gid)
	{
		try {
			String queryString = "update Subtype set gid = gid-1 where sid ="+sid+" and gid > "+gid;
			Query query = getCurrentSession().createQuery(queryString);
			query.executeUpdate();
			log.debug("update successful");
		} catch (RuntimeException re) {
			log.error("update failed", re);
			throw re;
		}
	
	
	}
	public int getCount(int sid ){
		try
		{
			String queryString = "select count(*) from Subtype as model where model.gid = ?";
			Query query = getCurrentSession().createSQLQuery(queryString);
			query.setParameter(0, sid);
			List list= query.list();
			return Integer.parseInt(list.get(0).toString());
//			return query.;
		}catch(RuntimeException e)
		{
			throw e;
		}
		
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Subtype instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Subtype as model where model."
					+ propertyName + "= ?";
			Query queryObject = getCurrentSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}
	public List findByGid(Object gid)
	{
	
		try {
			String queryString = "select * from Subtype as model where model.gid= ?";
			Query queryObject = getCurrentSession().createSQLQuery(queryString).addEntity(Subtype.class);
			queryObject.setParameter(0, gid);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByName(Object name) {
		return findByProperty(NAME, name);
	}

	public List findAll() {
		log.debug("finding all Subtype instances");
		try {
			String queryString = "from Subtype";
			Query queryObject = getCurrentSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Subtype merge(Subtype detachedInstance) {
		log.debug("merging Subtype instance");
		try {
			Subtype result = (Subtype) getCurrentSession().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Subtype instance) {
		log.debug("attaching dirty Subtype instance");
		try {
			getCurrentSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
	public List query(String name)
	{
		try
		{
			String sql = "select * from Subtype as a where a.name like :name";
			Query query = getCurrentSession().createSQLQuery(sql).addEntity(Subtype.class);
			query.setString("name", "%"+name+"%");
			return query.list();
		}catch(RuntimeException e)
		{
			throw e;
		}
	}
	public void attachClean(Subtype instance) {
		log.debug("attaching clean Subtype instance");
		try {
			getCurrentSession().buildLockRequest(LockOptions.NONE).lock(
					instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static SubtypeDAO getFromApplicationContext(ApplicationContext ctx) {
		return (SubtypeDAO) ctx.getBean("SubtypeDAO");
	}
}